Tom, Do we know for sure that the camera sees everything we see? Are we aware of everything that science will offer in the future? Because something is visible to the human eye it may not necessarily mean the camera can pick it up. Likewise, perhaps the camera sees things that we don't. We don't know everything even though some of us think we do. The earth was considered to be flat at one time - and that was fact, wasn't it? I'm not trying to prove anything. I'm simply saying that I've seen a ghost and therefore, as much as I'd like to say they don't exist, I have to be completely honest and say I cannot deny that they do. I don't believe ghosts are supernatural - I think they are natural - and although in your determination to undermine me you've clearly lost track of the conversation contending that I imagine science can't explain everything, I'd ask you to look back at my posts where I've said that some day science will explain ghosts. Additionally, I haven't put forward the argument you describe. I simply said that I don't think we can consider everyone who claims to have seen a ghost to be either lying or hallucinating. I can assure you that with my lack of religious belief I'd rather not have seen a ghost, but even though you may not like to hear it, I have seen one, so what can I say?
As for Russell's teapot or religious mass hysteria, those are a poor comparison to the claim of witnessing the appearance of a ghost, and the very idea undermines your own intelligence. Surely if you were genuinely interested in discovery, rather than dismissing and denigrating accounts out of hand, you'd be asking questions. It's typical of man's arrogance to say that something they have never personally experienced cannot exist. In this case if you don't know, the only thing you can reasonably say is you don't know.
By the way, do you take your alias from THE Tom Paine?